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Finding the Fourth Proportional to 190,196.70, 285,444.08 and 83,654.70

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Solution

The fourth proportional to 190,196.70, 285,444.08 and 83,654.70 is: 125,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,196.70 : 285,444.08 = 83,654.70 : x
  2. Step 2: Convert to fraction form
    190,196.70/285,444.08 = 83,654.70/x
  3. Step 3: Cross multiply
    190,196.70x = 285,444.08 × 83,654.70
  4. Step 4: Simplify right side
    190,196.70x = 23,878,738,879.18
  5. Step 5: Solve for x
    x = 23,878,738,879.18/190,196.70
  6. Step 6: Final answer
    x = 125,547.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.